Equinor awarded OCTIO gravimetry contract
OCTIO Gravitude has been awarded a five-year exclusive contract for Equinor gravimetry services on the NCS for the new generation gWatch technology.
Equinor has awarded OCTIO Gravitude an exclusive contract for gravimetric monitoring on the Norwegian continental shelf. The contract has an initial duration of five years, with an option of additional four years.
For these surveys, OCTIO Gravitude will be utilizing gWatch, the new generation of seabed gravimetry equipment. gWatch was introduced in 2018 for the surveys of the Ormen Lange and Aasta Hansteen fields, and features more compact instruments, improved survey efficiency and unprecedented data quality.
Gravimetry measurements at the seabed are used by oil companies to monitor fluid movements within hydrocarbon reservoirs. This information contributes to a more efficient reservoir management, and therefore to make hydrocarbon production more efficient in terms of both cost and environmental impact.
An improved quality in the measurement of gravity makes these benefits available for a wider variety of fields, and allows taking measures aimed to optimizing production at earlier stages of the hydrocarbon field lifetime.
There are typically three reservoir parameters that relate, directly or indirectly, to the observations: Aquifer strength from gravity measurements, pressure depletion and pore compressibility from subsidence. The aquifer strength is important for understanding material balance and the energy drivers in your reservoir. This has an impact on estimates of in-place volumes, remaining reserves, production profiles and the value of IOR/IGR measures. Subsidence, which is related to pressure depletion, can indicate sealing faults. For some depletion-drive fields, pore compressibility can be an important uncertainty parameter, and there is no other way of constraining this than measuring seafloor subsidence.
The new gWatch technology reduces HSE exposure, operational cost and provides improved data quality. gWatch is fully qualified in Equinor.